Never participate in the secrets of those above you; you think you share the fruit, and you share the stones - the confidence of a prince is not a grant, but a tax
Baltasar GracianWhen a man's knowledge is deep, he speaks well of an enemy. Instead of seeking revenge, he extends unexpected generosity. He turns insult into humor, ... and astonishes his adversary who finds no reason not to trust him.
Baltasar Gracian